Machine for rolling car-wheels



(No Model.) 2 Sheets--Sheet 1.

0. NIOGGEMEIER.

MAGHI INE FOR ROLLING CAR WHEELS..

No, 305,706. Patented Sept. 23, 1884.

lllElFlEEEEE- Jaw (No Model!) '2 sheets-sheet; 2.

- O. NIOGGEMEIER.

MAGHI NE FOB. ROLLING OAR WHEELS.

. No. 305,706. I Patented Sept. 23, 1884.

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EPATENTT OTTO NIOGGEMEIER, OF SHARPSBURG, ASSIGNOR OF ON E-IIALF TO GEORGE A. OHALFANI, OF ETNA, PENNSYLVANIA.

MACHINE FOR ROLLiNG CAR-WHEELS.

SPECIFICATION forming part of Letters Patent No. 305,706, dated September 23, 188%.

Application filed December 29,1883. (No model.)

To all whom it may concern:

Be it known that I, Orrro NIOGGEMEIER, of Sharpsburg, in the county of Allegheny and State of Pennsylvania, haveiuvented a new and useful Improvement in Rolling Car \Vheels; and I do hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to the construction of rolling-mills for rolling car-wheels; and it conslsts in mechanism for operating the sliding housings of the face and side rolls, and in specific combinations of such devices, all as will hereinafter be more definitely set forth.

I will now describe my invention so that others skilled in the art may employ the same, reference being bad to;the accompanying drawings, forming part of this specification, in .which Figure 1 is a plan view, partly in section,

of the apparatus employed by me. 2 is a vertical sectional view of one of'thc housings for the side rolls. tionof the sector and rack for adjusting the end roll, one of the side rolls, the end roll, and the mandrel being partly broken away, showing the wheel. Fig. 4 is an elevation of the sliding block and way f of the side rolls. Fig. 5 is a vertical transverse section of the sliding way, rack, and sector of the end roll; Fig. 6 is an enlarged view of the sector and rack b of the end roll.

Like letters indicate like parts wherever they occur.

In the drawings, a represents the mandrel for supporting the Wheel while it is being subjected to the action of the rolls; and it consists of two upright side plates, a a, joined at the bottom, and supported by braces at the forward end. In the middle of each of these side pieces is a groove, a or other device, which acts as a bearing for the hub or center of the wheel. In rear of these grooves the side pieces, a, are cut awayto allow the rolls to act on the wheel.

In rear of the mandrel a is the end roll, b, which acts 011 the face of the wheel. This is in the form of a disk somewhat greater in width than the face of the car-wheel. On the face of this roll isa groove, 1), which forms the flange of the wheeh and two projecting flanges, b b, which extend beyond the edges Fig. 3 is a side eleva-,

of the faces of the wheel during the rollingoperation. The remaining face of the roll is beveled, in order to form the bevel on the face of the wheel. The housings b of this roll rest 5 5 on a sliding way, and on the lower face of the housings is a rack, b, the teeth of which engage with the teeth of a sector, 0, which is keyed to the shaft 0, so that the housings and roll are moved toward or away from the face of the wheel when the shaft 0 is set in motion.

In front of the roll I), 011 each side of the blank in the mandrel, are the side rolls, d e, which have beveled faces cl 0, and from which extend the horizontal shafts d 6 which are journaled in the movable housingsd? o which housings slide on the bed-plates f, to which they are secured by the dovetail f, and are operated or moved so as to bring the rolls against the wheel or remove them therefrom by the shaft f which passes through the housing, and on which is formed a right and left screw-thread, one of which engages with a corresponding thread in the housings d andthe other in the housings a. The shafts e areinclined to each other and extend from the rolls, at an angle of about thirty degrees with the sides of the car-wheel, to the main shaft h, with which they are connected by the bevel gear-wheels h. About the middle of each of these shafts is a ball-andsocket joint, d e", the ball and socket of which are flattened, so that the rotary movement of the rear portion of the shaft shall be communicated to the forward portion, which, owing to the pivotal 8 5 joint, is permitted .to move wit-h the sliding housings.

In order to move the sliding housings, power is transmitted thereto from the main shaft as follows: On the main shaft h is a band- 0 wheel, a, from which a' straight belt and a twisted belt pass to the clutch band-wheel i, which is mounted on the shaft t and the diameter of which is twice the diameter of the wheel 2'. On the shaft 13 is keyed a gear-wheel, 5 11 having twelve cogs or teeth, which gear into the teeth of a gear'wheel, 7o, keyed to the shaft k, the diameter of which wheel is five times the diameter of the wheel 1'. Keyed on the shaft 70 is a gear-wheel, k having a di- 10o ameter equal to that of the wheel 6*, and the .cogs of which gear into the cogs of a gear.-

" the blank'causes it to revolve on its bearings wheel, k which is mounted loosely on the shaft 0, and the diameter of which is equal to that of the wheel k. The cogs of this wheel 70 mesh into the cogs of gear-wheel m, which is loosely mounted on the shaft f 011 the shafts c and f 2 are the friction-clutches m m which are keyed to the shaft by a feather and spline, and are operated by the levers at, so

as to bring them against the wheels k and m or remove them therefrom.

g The operation is as follows: The blank from which the car-wheel is to be formed is cast, preferably, of Bessemer steel, into the form of a disk, having a central opening for the axle. This blank, having been so formed, is placed in a heating-furnace andraised to a high degree of temperature, after which it is removed from the furnace and placed in the mandrel. \Vhen the blank has been so placed in the mandrel, the side rolls being set in motion, the belt on the wheel 1 is thrown so as to set the wheel in motion, which mot-ion is imparted, by means of the gear-wheels i 70, and W, to the wheels k and m, and by means of the clutch m this motion is imparted to the shaft f and screws thereon, which moves the housings the on the slides, and brings the side rolls, (1 6, against the sides of the blank, as shown in Fig. 1. The revolution of these rolls on their axes as they bear on the face of in the mandrel, so that the entire surface of the sides of the blank is subjected to the action of the rolls. The clutch mis then thrown in Contact with the wheel is, which imparts power to shaft 0, and by the sector 0 and rack b the housings are moved forward until the idle-roll 1) comes in contact with the face of the revolving car wheel in the mandrel. When the wheel has been formed or brought to the required shape by the rolls, they are withdrawn by throwing the cross-belt to the clutch band-wheel i, and the carwheel is then removed from the mandrel.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s

1. In a mill for rolling ear-wheels, the combination, with the side rolls having jointed shafts, of the sliding housings, the right-andleft-hand threaded screw, and the intermediate band wheel, pulleys, gear -wheels, and clutches for actuating the threaded screw from the power-shaft which drives the rolls, substantially as and for the, purposes specified.

2. In a mill for rolling car-wheels, the combination, with the side rolls, of a face roll having a sliding housing provided with a rack, the toothed sector having the shaft 0, and the intermediategearing for actuating the toothed sector-shaft from the power-shaft which drives the side rolls, substantially as and for the purposes specified.

3. In a mill for rolling car-wheels, the combination of the side rolls, having jointed shafts, the slidinghousings, the right-and-lefthand threaded screw for moving the sliding housings, of the side rolls the face roll having a sliding housing provided with a rack, a shaft provided with a toothed sector for operating the sliding housing of the face roll, and the intermediate gearing for operating the sector-shaft and the right-and-left-hand threaded screw from the power-shaft which drives the side rolls substantially as and for the purposes specified.

In testimony whereof I have hereunto set my handthis 5th day of December, A. D. 1883.

OTTO NIOGGEMEIER.

W'itnesses:

W. B. OORWIN, L. O. FITLER. 

